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chatree Junior

Joined: 24 Dec 2014 Posts: 1
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Posted: 19/09/2017 12:31 Post subject: Output lost for a while when CPU switchover |
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Hi everybody
I am the new in Controllogix redundant.
The project used PLC Allen bradley L-71 CPU with Redundant CPU and there are remote ios via Ethernet ring.
I faced the problem that when the cpu switch form primary controller to secondary controller , remote io output signal will lost (Output signal will de energize) and after 2 or 3 seconds the remote output will recover back to normal state.
Has anybody have any suggestion?
Thank you in advance. |
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parcell Junior

Joined: 14 Apr 2017 Posts: 8
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Posted: 20/09/2017 20:43 Post subject: Re: Output lost for a while when CPU switchover |
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| chatree wrote: | Hi everybody
I am the new in Controllogix redundant.
The project used PLC Allen bradley L-71 CPU with Redundant CPU and there are remote ios via Ethernet ring.
I faced the problem that when the cpu switch form primary controller to secondary controller , remote io output signal will lost (Output signal will de energize) and after 2 or 3 seconds the remote output will recover back to normal state.
Has anybody have any suggestion?
Thank you in advance. |
try to read this.
http://www.plctalk.net/qanda/showthread.php?t=108500 |
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